I/O module unit



FIG. 1 is a perspective view of an I/O module unit showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof showing a state that I/O modules are attached to the I/O module unit.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the I/O module unit and form no part of the claimed design. 

CLAIM The ornamental design for an I/O module unit, as shown and described. 